InterNACHI's Standards of Practice for Inspecting Pools & Spas:
1. Definitions and Scope
1.1. A residential pool and spa inspection is a non-invasive, visual examination of the accessible areas of a pool or spa (as delineated below), performed for a fee, which is designed to identify defects within specific systems and components defined by these Standards that are both observed and deemed material by the inspector. The scope of work may be modified by the Client and Inspector prior to the inspection process.
The residential pool and spa inspection is based on the observations made on the date of the inspection, and not a prediction of future conditions.
The residential pool and spa inspection will not reveal every issue that exists or ever could exist, but only those material defects observed on the date of the inspection.
1.2. A material defect is a specific issue with a system or component that may have a significant, adverse impact on the value of the property, or that poses an unreasonable risk to people. The fact that a system or component is near, at, or beyond the end of its normal, useful life is not, in itself, a material defect.
1.3. A residential pool and spa inspection report shall identify, in written format, defects within specific systems and components defined by these Standards that are both observed and deemed material by the inspector. Residential pool and spa inspection reports may also provide causes for these defects and possible future options that may include remediation or further evaluation. Residential pool and spa inspection reports may include additional comments and recommendations.
Inspectors are not required to inspect or perform any action not explicitly detailed in this these Standards https://www.nachi.org/internachi-pool-sop.htm#:~:text=Limitations%3A,enter%20the%20pool%20or%20spa.